Gas-engine.



Nq. 645,293. Patened Mar. I3, |900.

' A. HEIL.

GAS ENGINE.

{Applica/cion filed May 24, 1899.! quo Model.) 2 sheets-sheet l.

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No. 645,293. Patenten Mar. I3, |9oo.-

' A. HEIL.

GAS ENGINE.

(Application med May 24, 1899.)

2 Sheets-Sheet 2.r

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UNITED STATES PATENT OFFICE.

ALBREOIIT I-IEIL, OF FRANKFORT-ON-THE-MAIN, GERMANY, ASSIGNOR TO A. WOLF, JR., & OO., OF SAME PLACE.

. GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 645,293, dated March 13, 1900.

Application led May 24:, 1899.

To all whom, t nfl/ty concern:

Beit known that I, ALBRECHT HEIL, asubject of the Emperor of Germany, anda resident of Frankfort-on-the-Main, Germany, have invented certain new and useful Improvements in Gas-Engines, of which the following is a specication.

This invention has for its object to provide a gas-engine of very great simplicity without the necessity for the employment of either eccentric or toothed wheels, the valve motion being independent of the fly-wheel shaft and the engine operating in either direction, according as it is started.

A motor constructed in accordance with this invention is Aillustrated in the accompanying drawings, in which- Figure lis a longitudinalsection, and Fig. 2 a transverse section on the line A B, Fig. 1. Fig. 3 shows the general outline of the motor.

In the cylinder a, open at the forward end, moves the piston h, connected by the connecting-rod c with the crank of the shaft d, carrying the ily-wheel D. Another rod e projects from the piston and carries, by its cross-head f, the rod o", which carries the piece g, upon which is mounted a hinged rod h, carrying a cone or catch h2, connected thereto by a center pin h3 and pressed by a spring against a stop g2.

Vhen the piston b moves from the position represented in Fig. l toward the other end of the cylinder, the cone or catch h2 strikes against another cone or catch e', fixed to the outer end of the rod p of the piston-valve K, which is thereby displaced, so as to allow the mixture of gas and air to pass from the conduits Z and fm to the cylinder ct behind the piston b. As the piston further moves forward the piece s, fixed to the rod h, strikes against a stop o on the cylinder a, thereby lifting the cone or catch h2 and releasing the cone or catch t', which is then returned by the spring p2, and so causes the valve to close the gas and air ports immediately before the piston passes the opening q in the cylinder. After the piston has passed the opening q the mixture is ignited, which may be done in the known manner,and drives the piston forward. The ignition is shown as being effected by a flame being drawn in through a valve on the inside of the opening as shown in Fig. 2.

Serial No. 718,029. (No model.)

When the piston has arrived at the end of its outer stroke, the rod r strikes against the projection s on the rod t of the piston-valve u, which is thereby operated to allow the products of combustion to escape through the port n during the return stroke of the piston. Shortly before the return stroke has been completed the rod r strikes against another projection o on the valve-rod t, thereby reclosing the exhaust-opening, whereupon a new cycle commences, and so on during the operation of the engine.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim is l. In a gas-engine, the combination of the cylinder, working piston, valve controlling the admission of the explosive mixture to the cylinder, a rod e connected directly to the yond the end of the cylinder, a spring-pressed hinged rod h connected to the rod e to move therewith, a rod p extending from the valve, a spring normally tending to seat the valve, catches carried respectively by the rods hand p and arranged to engage each other on the outstroke of the piston to open the valve, and means to lift the rod h to disengage the catches at a predetermined point of the stroke, substantially as set forth.

2. In a gas-engine, the combination of the cylinder, working piston, valve controlling the admission of the explosive mixture to the cylinder, a rod projecting from the piston, a springfpressed hingedrod 71, connected to the rod on the piston, a rod p extending from the valve, a spring p2 normally tending to seat the valve, catches h2 and lcarried respectively by the rods h and p and adapted to engage on the outstroke of the piston, a projection 0 on the cylinder, and an arm .e on the rod h to engage said projection and thereby lift the arm h and disengage the catches h2 and t', substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBREOHT HEIL.

Witnesses: FRANZ HAssLACHnR,

MICHAEL FOLK.

piston to move therewith and projecting be- 

